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Studies of Temperature-Dependent Excimer-Monomer Conversion in Dendrimeric Antenna Supermolecules by Fluorescence Spectroscopy

Published online by Cambridge University Press:  21 March 2011

Youfu Caoa ,
Jeffrey S. Moore  and
Raoul Kopelman
Youfu Caoa
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109
Jeffrey S. Moore
Affiliation:
Department of Chemistry, University of Illinois, Urbana, IL 61801
Raoul Kopelman*
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109
*
*Correspondence Author: kopelman@umich.edu
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Abstract

Phenylacetylene (PA) dendrimer labeled with perylene (See Fig 1) is discovered to exhibit temperature-dependent emission spectra in certain organic solvents over the temperature range of 20-65°C. The monomer signal is increasing rapidly when temperature increases, while the excimer signal decreases slowly. Models of excimer formation and weakly associated pairs (M+M) dissociation dynamics are included, and the equilibrium constants at different temperatures are calculated. This behavior suggests potential applications in fluorescence-based thermometry.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 651: Symposium T – Dynamics in Small Confining Systems V , 2000 , T7.27.1
Copyright
Copyright © Materials Research Society 2001

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References

1. Xu, Z.; Moore, J. S. Acta Polym 1994, 45, 83.Google Scholar
2. Swallen, S. F; Shortreed, M. R.; Shi, Z. Y.; Tan, W., Xu, Z.; Devadoss, C.; Moore, J.S.; Kopelman, R. (Cairo) Dendrimeric Antenna Supermolecules with Multistep Directed Energy Transfer in Science and Technology of Polymers and Advanced Materials; Prasad, P. N.; Plenum Press: New York, 1998 Google Scholar
3. Shortreed, M. R.; Swallen, S. F.; Shi, Z. -Y.; Tan, W.; Xu, Z.; Devadoss, C.; Moore, J. S.; Kopelman, R. J. Phys. Chem. B. 1997, 101, 6318–22.Google Scholar
4. Bar-Haim, A.; Klafter, J; Kopelman, R. J. Am. Chem. Soc. 1997, 26, 6197 Google Scholar
5. Tretiak, S.; Cherniak, V.; Mukamel, S. J. Phys. Chem. B 1998, 102, 3310–15Google Scholar
6. Junge, B. M.; McGrath, D. V. Chem Commun. 1997, 9, 857 Google Scholar
7. Tomalia, D. A.; Naylor, A. M.; Goddard, W. Angew, A.. Chem., Int. ED Engl 1990, 29, 138.Google Scholar
8. Kopelman, R.; tan, W. Appl. Spectrosc. Rev. 1994, 29, 39 Google Scholar
9. Tan, W.; Kopelman, R. In Fluorescence Imaging Spectroscopy and Microscopy; Wang, X. F., Herman, B., Eds.; Wiley: New York, 1996; pp407–475.Google Scholar
10. Kopelman, R. & Tan, W. Science 262, 1382–1384 (1993)Google Scholar
11. Michaells, J.; Hettich, C.; Mlynek, J. & Sandoghdar, V., Nature, 405, 325–327 (2000)Google Scholar
12. Aida, T.; Sata, T.; Jiang, D.L., J. Am. Chem. Soc. 121, 10658, 1999 Google Scholar
13. Swallen, S.F.; Kopelman, R.; Moore, J.S.; Devadoss, C., Journal of Molecular Structure, 485–486 (1999) 585–597 Google Scholar
14. Swallen, S.F.; Xu, Z.G.; Moore, J. S.; Kopelman, R, J. Phys. Chem B, Vol 104, No.16, 2000 Google Scholar
15. Lou, J. F.; Hatton, T. A.; Laibinis, P. E., Anal. Chem., 1997, 69, 1262–1264 Google Scholar
16, Lou, J. F.; Finegan, T. M.; Mohsen, P.; Hatton, T. A. & Laibinis, P. E. Reviews in Analytical Chemistry, Vol. 18, No. 4, 1999 Google Scholar